How to use the ilib/lib/LocaleInfo function in ilib

function getI18nClasses (options = {}) {
	const {sync, onLoad} = options;
	if (!onLoad) return;

	// eslint-disable-next-line no-new,no-undefined
	new LocaleInfo(undefined, {
		sync,
		onLoad: (li) => getClassesForLocale(li, {
			...options,
			onLoad
		})
	}); // for the current locale
}

function isNonLatinLocale (spec, options = {}) {
	const {onLoad, latinLanguageOverrides, nonLatinLanguageOverrides, ...rest} = options;

	if (!onLoad) return;

	// eslint-disable-next-line no-new
	new LocaleInfo(spec, {
		...rest,
		onLoad: (li) => {
			const locale = li.getLocale();

			onLoad(
				// the language actually is non-latin and should not be treated as latin
				(li.getScript() !== 'Latn' && !includesLocale(latinLanguageOverrides, locale)) ||
				// the language is latin but should be treated as non-latin
				includesLocale(nonLatinLanguageOverrides, locale)
			);
		}
	});
}

length: 'full',
			date: 'dmwy'
		});

		// Meridiem localization
		const merFormatter = new DateFmt({
			template: 'a',
			useNative: false,
			timezone: 'local'
		});
		const meridiems = merFormatter.getMeridiemsRange();
		const meridiemRanges = meridiems.map(calcMeridiemRange);
		const meridiemLabels = meridiems.map(obj => obj.name);

		// Picker ordering
		const li = new LocaleInfo();
		const clockPref = li.getClock();
		const meridiemEnabled = clockPref === '12';

		const filter = meridiemEnabled ? includeMeridiem : excludeMeridiem;
		const order = formatter.getTemplate()
			.replace(/'.*?'/g, '')
			.match(filter)
			.map(s => s[0].toLowerCase());

		return {
			formatter,
			meridiemEnabled,
			meridiemLabels,
			meridiemRanges,
			order
		};